Play games
Choose the game that interests you and play itfor free.
Complete the quests
Every game has some quests for which you will receive Soul Gems.
Receive rewards
You can exchange your Soul Gems for Steam Wallet top-ups, game keys, CS:GO Skins and other rewards.
I received my reward code from here for GTA 5 it was on my old computer but hard drive crashed now I cant remember or figure out where the code is good at.? Its not Steam and its not GOG? Anybody know other reward code sites? thanks